Technology
Download time
Estimate download duration from size and connection speed.
Calculators / Technology / Bandwidth and transfer time
Bandwidth and transfer time calculator
Estimate transfer time from data size and connection speed.
On this page
Transfer time888.89seconds
Transfer time14.81minutes
Calculator controls
How to calculate
Estimate transfer time from data size and connection speed.
Transfer time = size*8000/(speed*efficiency/100); Transfer time = size*8000/(speed*efficiency/100)/60
Worked example
Data size (GB): 10; Connection speed (Mbps): 100; Usable throughput (%): 90.
Transfer time: 888.89 seconds; Transfer time: 14.81 minutes.
Assumptions and limits
Uses decimal gigabytes and megabits. Protocol overhead, congestion and server limits reduce throughput.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Estimate transfer time from data size and connection speed. The displayed figures use the inputs and formula shown on this page.
When this tool is useful
Use the bandwidth and transfer time to compare a scenario, check an estimate, or verify a manual calculation.
Understanding your inputs
| Input | What to enter |
|---|---|
| Data size (GB) | Enter a number of at least 0.000001 and no more than 1000000000000. |
| Connection speed (Mbps) | Enter a number of at least 0.000001 and no more than 1000000000000. |
| Usable throughput (%) | Enter a number of at least 0.1 and no more than 100. |
Frequently asked questions
What should I check before using the bandwidth and transfer time result?
Uses decimal gigabytes and megabits. Protocol overhead, congestion and server limits reduce throughput.
Is this bandwidth and transfer time result exact?
It is exact for the stated mathematical model and entered values. Real-world results can differ when rates, timing, fees, definitions or measurement conditions differ.